The structure and function of the cardiovascular system: the heart

· Home · Add articles · Information · Map sites ·

Statistics

Total 459 articles
in 17 categories
In moderation 105 articles

Allergies [36]
Allergy is a disorder of the immune system often also referred to as atopy.

Antidepressants [37]
An antidepressant is a psychiatric medication used to alleviate mood disorders, such as major depression and dysthymia.

Arthritis [8]
Arthritis is a group of conditions involving damage to the joints of the body.

Cancer [38]
Cancer is a class of diseases in which a group of cells display uncontrolled growth

Cardio & Blood [20]
Risk factors for heart disease: infections

Cholesterol [1]
A fat-like substance called a lipid. It is used to build cell membranes, hormones and bile acids

Diabetes [21]
The inability of the body to produce, or the inability to metabolize, the human hormone insulin; Diabetes insipidus, usually a disorder of the ...

Epilepsy [2]
Epilepsy is a common chronic neurological disorder characterized by recurrent unprovoked seizures

General Health [110]
The infant, child or young person?s current health condition

Herbal [36]
Herbal tea, herbal medicine

HIV [1]

Hormonal [17]
Hormones - Proteins produced by organs of the body that trigger activity in other locations.

Men's Health [5]
For men on fitness, health, sex, caree

Pain relief [18]
Pain management is the medical discipline concerned with the relief of pain.

Skin care [36]
The skin is the outer covering of the body

Weight Loss [36]
Loss of body weight by dieting or due to various easting disorders or medical conditions.

Women's Health [37]
Find information on women's health issues, and lifestyle at the Women's Health

Fresh materia

Hormonal treatment of endometriosis: the oral contraceptive pill
→ More

Endometriosis: treating endometriosis with acupuncture
→ More

Explaining endometriosis: combined treatment
→ More

Hormonal treatment of endometriosis: primolut n
→ More

Fertility problems: tests for nutritional deficiencies and toxins
→ More

Fresh materia

[3199 view]
Hormonal treatment of endometriosis: duphaston → More

[2303 view]
Hormonal treatment of endometriosis: primolut n → More

[1716 view]
Pseudo-insomnia → More

[1709 view]
Hormonal treatment of endometriosis: depo-provera → More

[1412 view]
Treatment of endometriosis: danazol and its side effects → More

Awaiting moderation 105 Article

The structure and function of the cardiovascular system: the heart
THE STRUCTURE AND FUNCTION OF THE CARDIOVASCULAR SYSTEM: THE HEART
The heart is a muscle approximately the size of a man's closed fist located within the chest cavity just left of center between the lungs. It is divided into two equal cavities separated by a wall of muscle: the "left" heart and the "right" heart; each half in turn is divided into two chambers: the upper one is called the atrium and a lower portion is known as the ventricle. A system of valves separates the atrias and ventricles and regulates the flow of blood into and out of the heart.
The structure of the heart can best be compared to a coupled double pump. As a matter of fact the left and right heart are two mechanically independent pumping stations that form a single organ. And like the heart, the circulatory system is also made up of two separate parts: pulmonary circulation serving the lungs, and the systemic circulation serving the body as a whole. The right heart pumps blood into the pulmonary circulation and the left heart supplies the systemic circulation. The division serves a vital function: the "exchange of gases" between air, blood, and tissues. As was previously mentioned, the body cells must be supplied with oxygen and be allowed to rid themselves of carbon dioxide in order to live. The supply and excretion of these two gases takes place in the following fashion. The right ventricle receives the deoxygenated blood from the vena cava and pumps it into the pulmonary circulation. The extensive capillary network promotes the rapid exchange between the air cells (alveoli) in the lungs and the deoxygenated blood pumped in by the heart; the red blood cells eliminate the carbon dioxide and take up oxygen. The oxygenated blood is then carried to the heart by the pulmonary vein, and then the heart sends it out into the blood stream.
*9\336\2*
Cardio & Blood/ Сholesterol
«Mexican Online Pharmacy»

Print
Viewed: 190

What else is watching the people who read this article:
How to succeed in the treatment of high blood pressure [170]
The myocardium (heart muscle): location of the myocardium (heart muscle) [194]
The heart valves: the atrioventricular valves [279]
The coronary blood vessels (the fuel lines): structure of the coronary arteries & common reasons why your heart may demand more oxygen [169]
The treatment of high blood pressure: regular follow-up visits [188]

Keywords for this page: The structure and function of the cardiovascular system: the heart

Warning: include(design/menu.inc.php) [function.include]: failed to open stream: No such file or directory in /home/geddes/public_html/jugando-juegos.com/sarticles.php on line 209

Warning: include(design/menu.inc.php) [function.include]: failed to open stream: No such file or directory in /home/geddes/public_html/jugando-juegos.com/sarticles.php on line 209

Warning: include() [function.include]: Failed opening 'design/menu.inc.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/geddes/public_html/jugando-juegos.com/sarticles.php on line 209

· Pharmacy online · Buy prescription drugs online